Improvement in stave-jgsnting machines



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s taves.

UNITE-D STATES* Parenti* @trice-3@ WQHNS. THOMPSON, O F GLENNS FALLS, NVE'V- YORK,

IMPROVEMENT 1N sTAve-JoiNTING MACHINES.

vSpccificatien forming part of Letters Patent' Nc. 4515233. dated September 13, 1864.

To a/ZZ whom, it may concern:

' Be it knownthai I, JOHN S. THOMPSON, of Glerius Falls, in the county of Warren and State of N ew York, have invented 4a new and Improved Machine for Jointing Staves; and Ido hereby vdeclare that the following is a full, clear, and exact description thereof, which will enable those skilled, in the art to make and use the same, reference 'being had to the accompanying drawings,.formin'g part of this specification, in which- Figure l is a side sectional view of my 1nvention taken in the line a: x, Fig. 2; Fig. 2,

l a plan Vor top view of the same Fig. 3, a transverse verticalsection ot' the same taken' in the line-y y, Fig. 1.

Similar letters o'f reference indicate corre spending parts. -f

This invention relates to a ne'w and improved inachinefor jointing staves, whereby the work may be done in a very expeditious and perfect manner and with very little labor on the part of the attendant.

A represents a framing of rectangularform and constructed in any proper manner to -support the working parts.

j On the upper ,parallel bars of the fra-ming A there are secured ways or guides B B, of concave'form, andupon which a carriage, G, is fitted and allowed to work freely back and forth. The

curvature of theguides B correspond to the curvature or bilge designed to be given the The carriage C is composed of two transversebars, a a, connected by two longitudinal bars, b b, and between the bars a a there is fitted a frame, D, which is allowed to turn freely-on journals c'c. This frame D is pro vided at one side with a clamp, E, which is operated by a lever, F, with a cam, d, at its end. One end of the carriage C has a strap,

G, attached toit, which passes over a pulley,

e,' at one end of the framing A, and -hasja weight, f, secured to its' lower end, the op-f posite end of the carriage having a strap, H,- Q attached to it, which is connected to apulley,

I, on a shaft, J, at the opposite end of the framing, said pulley I being connected to and disconnected from the shaft J by means of a clutch, K, one part of whichis at one end of the pulley, the latter' being moved in order toengage'anddisengage the clutch, which is rione by means of a shaft, L, having an up-` right lever, g,at one end, and an upright arm',l

h., at the opposite end, the upper end oi' said arm being forked to titon a collar, i, on' the shaft J. This shaft L also has an uprightv arm, j, attached to itncar the arm lz, the use of which will be presently shown.

M isa shaft, which is placed vertically in the framing A,and has a'circular head or disk, N, on its `upper end, provided with cutters k `of gouge form.

` This cutter head vor disk is at the center of thelv framing A, and the shaft -M is driven by a belt, l. from a shaft, N2, at one end of the framing. The sh ift J is driven by gears m from a shaft, O, which has motion communicated to itfrom theshaft Nz by a belt.

P is a platform or frame'fwhich is attached' at one side tok one of the'side bars of the framing by means of jointsor hinges o; :pulp p are adjustable stops attached to the opposite sidebar of the framing to limit the upward adjustment ot' the platform or frame P. Fig. 3.) The platform or frame P is connected by a bar, q, with a slide, Q, fitted between gnides, said slide being connected by a strap, s, with a'treadle, R. The bar q is gfonvnected to the slide' and platform or frame by joints t.

The operation is as follows: The staves io be jointed are iitted or placed ed gcwise in the carriage C, and rest upon the platform P,

l which is kept elevated by the foot of .the alitendant placed on the treadle R. This platform causes the lower edges of the staves to be brought to a proper level. The sta-ves are then firmly secured 'in the frame'D of the carringe by means of the clamp E. The platform is then allowedto drop by removing the foot from the treadle, and the pulley I is then,

by actuating the shaftlL, connected with the shaft J, and the carriage C -is drawn vover the cutter-head N, which cuts or joints the lower edges ofthe staves, the longitudinal curve or -bilge being given them vby thepassage of the carriage over the concave ways or guides B, and the bevel being given them by the inclination of the fram'eD, caused by the outer -edge of said frame restingon one of the bars b of thecarriage. When the carriage reaches the -and of its movement, a beveled projection, ax, on the carriage strikes the arm j of the riage to its origina-l position over the platl forni or frame P. The frame l)l is then turned,

so that its outer edge will rest on the other; l

'l the carriage G, in connection with the pluti form or'frame P and cutter-head or disk N,

barb of the carriage, and the platform B is then elevated. The staves in vthe frame/D are then released by throwing outward the clamp E, and the unjointed edges of the staves drop and rest on the platform, which causes them all to'be brought to :L level or in line with each other7 however `much the staves ma'y vary in width. This reversing of the position of the frame D gives a. reverse bevel to the two edges of the stares, and this bevel may L be'varied or modified by adjusting the stops Y p of the platform I. The platform P is then allowed to drop, the pulley I..eonnected with shaft J and the carriage is drawn again over the cutter-head und the other edges of t-he i stoves jointed.

I Letters Patenti -1. The reversible frame D, placed within' l when eonstructed and operating substantially as and for the purpose specified.

2. The ooneave ways or guides B B, in oonnection with the cutter-head or disk N, carriage C, with reversible frame D, und the i platform or frame P, all arranged to" operateI l substantially as and for the purpose set forth. l

JOHN S. THOMPSON-' Witnesses: I y

J oHN E. POTTER, GEO. W. CHENEY.

I claim as new and desire to secure by' 

